Based　on　the　Pseudo-Rigid-Body　Model　(PRBM),　a　new　model　with　three　degrees　of　freedom　is　proposed　for　the　large　deflection　beams　with　combined　end　loads　in　compliant　mechanisms.　The　lateral　and　axial　deflections　of　flexural　beams　are　modeled　using　four　rigid　links　connected　by　one　prismatic　(P)　pair　with　a　compression　spring　and　two　revolute　(R)　joints　with　torsion　springs.　The　flexural　cantilever　beam　subject　to　end　force　and　moment　loads　is　simulated　by　PRR　pseudo-rigid-body　model.　The　characteristic　parameters　of　the　PRR　PRBM　are　determined　via　the　optimization　and　numerical　fitting　techniques.　Compared　with　the　2R,　PR　and　3R　models,　the　new　PRR　PRBM　shows　the　superiority　in　simulating　the　large　deflection　beams　of　compliant　mechanisms　through　numerical　examples.　(C)　2015　Elsevier　Inc.　All　rights　reserved.